Kill twenty zombies with a single bomb trap.
Play five minutes in darkness.
While playing Mike, search four cacti in a row.
Put blockades on every door and window in one level.
Activate the Jukebox and make a zombie dance.
Make ten infected zombies dance at the same time.
Complete all singleplayer levels.
Win all gold medals in all singleplayer levels.
Build every trap and a wood blockade in one level.
Employ 20 construction zombies at the same time.
Build five blockades with super awesome finish in a row.
While playing Foxy, kill three zombies with one melee attack.
